189274093 has 2 divisors, whose sum is σ = 189274094. Its totient is φ = 189274092.

The previous prime is 189274091. The next prime is 189274103. The reversal of 189274093 is 390472981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189255049 + 19044 = 13757^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 189274093 - 2¹ = 189274091 is a prime.

Together with 189274091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189274091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94637046 + 94637047.

It is an arithmetic number, because the mean of its divisors is an integer number (94637047).

Almost surely, 2^189274093 is an apocalyptic number.

It is an amenable number.

189274093 is a deficient number, since it is larger than the sum of its proper divisors (1).

189274093 is an equidigital number, since it uses as much as digits as its factorization.

189274093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 189274093 is about 13757.6921393088. The cubic root of 189274093 is about 574.1566393762.

The spelling of 189274093 in words is "one hundred eighty-nine million, two hundred seventy-four thousand, ninety-three".